Dragging and dropping a texture
I apologize if this answer is too basic or misunderstands your issue.

I created a blend file that I made by subdividing a plain, extruding a row of hedges along Z, and then applying a material with an image texture to the raised hedge. 

The first image below is the material set-up in Cycles. The second is the view in Blender in Object mode at with Material View selected.

Here is a Dropbox link to the blend file:
https://www.dropbox.com/s/6klf54mwkup0ysd/hedge.blend?dl=0

If this is the issue you were trying to address, let me know if it is incomplete....